Use the new generic cmpxchg_local (disables interrupt). Also use the generic cmpxchg as fallback if SMP is not set. Signed-off-by: Mathieu Desnoyers CC: clameter@sgi.com CC: gerg@uclinux.org --- include/asm-m68knommu/system.h | 28 +++++++++++----------------- 1 file changed, 11 insertions(+), 17 deletions(-) Index: linux-2.6-lttng/include/asm-m68knommu/system.h =================================================================== --- linux-2.6-lttng.orig/include/asm-m68knommu/system.h 2007-07-20 18:36:08.000000000 -0400 +++ linux-2.6-lttng/include/asm-m68knommu/system.h 2007-07-20 19:37:02.000000000 -0400 @@ -187,26 +187,20 @@ static inline unsigned long __xchg(unsig } #endif +#include + /* - * Atomic compare and exchange. Compare OLD with MEM, if identical, - * store NEW in MEM. Return the initial value in MEM. Success is - * indicated by comparing RETURN with OLD. + * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make + * them available. */ -#define __HAVE_ARCH_CMPXCHG 1 - -static __inline__ unsigned long -cmpxchg(volatile int *p, int old, int new) -{ - unsigned long flags; - int prev; - - local_irq_save(flags); - if ((prev = *p) == old) - *p = new; - local_irq_restore(flags); - return(prev); -} +#define cmpxchg_local(ptr,o,n) \ + (__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), (unsigned long)(o), \ + (unsigned long)(n), sizeof(*(ptr))) +#define cmpxchg64_local(ptr,o,n) __cmpxchg64_local_generic((ptr), (o), (n)) +#ifndef CONFIG_SMP +#include +#endif #ifdef CONFIG_M68332 #define HARD_RESET_NOW() ({ \ -- Mathieu Desnoyers Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/